Portal 2 achievements
917
(510)

Portal 2

4.6 from 359 votes

There are a maximum of 51 Portal 2 achievements worth 917

8,792 tracked gamers have this game, 544 have completed it (6.19%)

Achievement Details

You Saved Science in Portal 2

You Saved Science17

Complete all test chambers in all courses of co-op

  • Unlocked by 3,155 tracked gamers (34% - TSA Ratio = 1.70) 9,177  
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